DirectShowPropertyBagMBS.Read ..... what parameter?

Add-Ons
1

Hi, as the object, I would know about the method:

DirectShowPropertyBagMBS.Read(name as string) as Variant

What can I to use as the var “name”?
There is a list of possible parameter values?

can I for example access “device instance path”? (percorso istanza dispositivo)

thanks

2

The DirectShowPropertyBagMBS class is like a dictionary. Let me check if I can add a function to find property names.

3

Maybe you better check documentation on what properties are available.

4

documentation of camera? I think the information I search is based on windows registry. My problem is this: i want to use two identical cameras. This is a problem if I change the port, because the cameras are inverted, but there is no way to detect this, usiny friendly name and dev path.

5

No, but lookup on Microsoft how they name properties like this:

Dim p As DirectShowPropertyBagMBS = dev.Properties
if p<>nil then
  // we show some properties
  
  dim v1 as Variant = p.Read("FriendlyName")
  dim v2 as Variant = p.Read("CLSID")
6

One thing I only realized now is that propertybags are not tied to DirectShow but to Windows in general. Unfortunately so far I haven’t been able to find a list of string constants I might need. Thanks for the answers given so far.